Household grinding wheel



Mar. 13, 1923. 1,448,422

S. A. STRZELCZYK HOUSEHOLD GRINDING WHEEL Filed Feb. 10, 1921 PatentedMar. 13,. 1923.

SAMUEL A. sTaznLczYK, or MILWAUKEE;- Wisconsin.

' nevs'eaaefleemm WHEEL.

Application filed February 10, 1921. sea; in. "4425,5655

To all tohom it ma concern:

Be it'known that I, S MUEL ALSTRZIino-Q' zYK,'a citizen of the UnitedStates,jand resident of Milwaukee, in the county ofM'ilwaukee and Stateof Wisconsin, have invented certain, new and useful Improvements inHousehold Grinding wheelsgand I. do hereby declare that the followingisa full, clear, and exact description thereof. j ,c v My inventionrelates to new anduse'ful improvements ingrinding wheel structures, andis'more particularly directed to the provision of a grinding wheelstructure of exceedingly simple nature and adapted more particularly forhousehold uses.

In theordinary household, considerablev use is found for a grindingwheel under conditions which impart comparatively little strain or wearas in sharpening kitchen knives and the like. It is therefore primarilythe object of my invention to provide a grinding wheel which is ofSllflllClBIlt strength and durability to meet ordinary householdconditions and which may be manufactured with a minimum expenditure oftime. labor and material, it being more specifically an object toprovide a grinding wheel and clamp attaching member therefor constructedalmost entirely of wood.

A further object resides in the provision of a clamping member formounting the 1 wheel, including portions cut from a single block of woodin such manner as to procure a maximum coacting clamping expanse of saidmembers.

With the above and other objects and advantages in view the inventionresides more particularly in the novel combination, formation andarrangement of parts more particularly hereinafter described and pointedout in the appended claims.

In the drawings:

Figure 1 is a side elevational view of a grinding wheel structureconstructed in accordance with my invention, and with portions thereofbroken away.

Figure 2 is an end view of the structure.

In forming my improved grinding wheel structure, there is provided abody block 5 and one end of this body block is turned to provide anintegrally projecting journal pintle 6 for the grinding wheel. The otherend of the block forms a clamping member and a coacting clamping bar 7is formed by slitting the body longitudinally from said other end, andthen cutting the block transversely, at an acute anglejvlieiie by tovide' for? detachment of the bar I portion .7. 1 l a t A damp g b ltshavih ayw inut thereon is'.' passed "through [the ,bar f7througlithebodyjblock and the H1118, nd of thjfbar seatson'thetop face o"ebl ThliS fbyitransve s'e'ly c utt g i H I ltu dinal 'sl topfacef ofthe blocka'nd the, bottom the bar are afforded relat'iyel th than ifltheW an aeptjangle to the long dotangles, and he'"o1iter"'ends" of' theblock and" clamping bar 7 may be disposed in the same plane, withtheir'inner ends in lapped abutting relation, whereby to procure amaximum clamping action. The inner end of the bar 7 is loosely coupledto the top of the block by a pair of interlocked staples 1O driven insaid end and topof the block, the only function of these staples beingto prevent rotative movement of the bar on the bolt 8.

The grinding wheel comprises a circular wooden disc 11 journalled on thepintle 6, and secured against displacement therefrom by a nail 12 driventhrough a retaining cap 13 into the end of the pintle. Projectingoutwardly from the disc adjacent its periphery is a screw bolt 14 onwhich is mounted a handle sleeve 15 retained against displacement by thehead of the bolt. Glued on the periphery of the disk is a strip of emerypaper or other suitable abrasive material 16, and to secure the ends. ofsaid strip, said ends are tucked into a radial slit 17 in the peripheralportion of the disk.

By the foregoing description a grinding wheel structure has beenprovided which may be manufactured at an exceedingly low cost, the onlymetallic-part involved, apart from the nails and screws being the smallcap plate 13. In forming the mounting for the wheel, the body block 5 isfirst cut from a length of wood, and placed in a lathe to form theintegral pintle 6. A bore for the clamping bolt is then made and theblock is cut to form the bar portion 7 which is severy small cost ofmanuout the bar portion 7 affords a bearing support for the Wheel anddisk to prevent Wobbly movement thereof, in addition to providing aspacing means for the block and bar to receive the vedge of a table orother support.

For honing knives or the like, the top face of the clamping bar 7 hassecured thereto a strip of suitable honing material 18.

What is claimed:

1. 'A device of the class described compris-' ing a body block, a pintleat one end of the body block, a disk mounted on said pintle,

said body block being slit longitudinally bar is retained in lappedrelation with the said portion of the block.

2. A device of the class described comprising a body block, a pintle atone end of the body block, a disk mounted on said pintle, said bodyblock being slit longitudinally from its other end and being cuttransversely to form a separate clamping bar portion, a clamping boltpassed through said clamping bar portion and the block and interlockedstaples driven into the clamp ing bar and the pintle end portion of theblock, whereby the adjacent end of the bar is loosely retained in lappedrelation with the adjacent portion of the block.

In testimony that I claim the foregoing I have hereunto set my hand atMilwaukee, in the county of Milwaukee and State of Wisconsin.

SAMUEL A. s'rnzELozYK'

